Finding the Fourth Proportional to 5,061.76, 7,590.72 and 2,872

Step by Step Solution

1. Step 1: Write the proportion equation
   5,061.76 : 7,590.72 = 2,872 : x
2. Step 2: Convert to fraction form
   5,061.76/7,590.72 = 2,872/x
3. Step 3: Cross multiply
   5,061.76x = 7,590.72 × 2,872
4. Step 4: Simplify right side
   5,061.76x = 21,800,547.84
5. Step 5: Solve for x
   x = 21,800,547.84/5,061.76
6. Step 6: Final answer
   x = 4,306.91